Ljapin E S <br/><br/>
Theory of partial algebraic operations 
Ljapin E S; Evseev A E 
 -  1997 
<br/><br/><label>Standard No.: </label>6204 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B26, N7